|
|||||
|
|
| 预应力CFRP片材加固RC梁荷载-挠度分析 | |
| 引用本文： | 王兴国,郭大州,李力,周朝阳.预应力CFRP片材加固RC梁荷载-挠度分析[J].玻璃钢/复合材料,2010(3):7-11. |
| 作者姓名： | 王兴国 郭大州 李力 周朝阳 |
| 作者单位： | 1. 河南理工大学土木工程学院,河南焦作,454003 2. 河南理工大学高职学院,河南焦作,454003 3. 中南大学土木建筑学院,湖南长沙,410075 |
| 基金项目： | 河南省重点科技攻关，河南省教育厅项目，河南理工大学博士科研启动基金，校青年骨干教师计划 |
| 摘 要： | 在已有混凝土梁外贴预应力破纤维增强聚合物(Carbon Fiber-Reinforced Polymer,简称CFRP)片材加固试验研究基础之上,基于平截面、界面无滑移等假定,考虑了CFRP片材端部有、无机械锚固及有、无初始荷栽持续作用等情况,建立了预应力纤维片材加固混凝土梁的全过程分析方法,编制了相应程序,比对了实验梁的荷栽-挠度实测曲线与计算曲线,吻合较好.其中,弯曲破坏的试验梁屈服荷载计算值与试验值误差平均值为3.88%,计算值与试验值比值的平均值为1.039,变异系数为0.027;极限承栽力计算值与试验值误差平均值为5.3%,计算值与试验值比值的平均值为1.054,变异系数为0.04,从而也说明了分析过程的正确性. |
| 关 键 词： | 桥梁工程 预应力 加固 FRP片材 非线性分析 |
LOAD-CAPACITY ANALYSIS OF RC BEAMS STRENTHENED WITH PRESTRESS CFRP LAMINATE |
|
| WANG Xing-guo,GUO Da-zhou,LI Li,ZHOU Chao-yang.LOAD-CAPACITY ANALYSIS OF RC BEAMS STRENTHENED WITH PRESTRESS CFRP LAMINATE[J].Fiber Reinforced Plastics/Composites,2010(3):7-11. | |
| Authors: | WANG Xing-guo GUO Da-zhou LI Li ZHOU Chao-yang |
| Affiliation: | WANG Xing-guo1,GUO Da-zhou2,LI Li1,ZHOU Chao-yang3(1.School of Civil Engineering,Henan Polytechnic University,Jiaozuo 454003,China,2.School of Higher Vocational and Technical Education,3.School of Civil Engineering and Architecture,Central South University,Changsha 410075,China) |
| Abstract: | Experimental study of RC members strenthened with pretressed CFRP laminate has been extensively employed.Based on the assumptions of plane section remaining,non-slip on interface and stress-strain relationships of materials,flexural behavior of the whole course is analyzed from initial load,pretension release to failure for concrete beam.The program is verified its applicability by comparison of the calculated results with the experimental ones,which the mean value and variation coefficient of the ratio is ... |
| Keywords: | bridge engineering prestress strenthening FRP laminate finite nolinear analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |